Thermal management optimization strategy of electric vehicle based on dynamic programming

In order to further tap the energy saving potential of the thermal management system of pure electric vehicles and to improve the driving range under low temperature environment, a vehicle thermal management control strategy based on dynamic programming was designed. Firstly, based on the AmeSim and...

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Bibliographic Details
Published in:Control engineering practice 2023-08, Vol.137, p.105562, Article 105562
Main Authors: Lian, YuBo, Ling, HePing, Zhu, JiaPeng, Lv, JingLun, Xie, ZhenWen
Format: Article
Language:English
Subjects:
Control strategy
Dynamic programming
Electric vehicle
Thermal management
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Summary:In order to further tap the energy saving potential of the thermal management system of pure electric vehicles and to improve the driving range under low temperature environment, a vehicle thermal management control strategy based on dynamic programming was designed. Firstly, based on the AmeSim and Simulink co-simulation platform, a refined simulation model of the vehicle thermal management system was built, including the battery system, drive system and heat pump system models. Then, a vehicle thermal management control strategy based on forward dynamic programming algorithm was proposed. By optimizing the control trajectory of compressor speed, PTC ( Positive Temperature Coefficient) power and waste heat mode, both economy and cabin comfort were improved. Finally, the simulation based on CLTC (China Light Vehicle Test Cycle) working condition verifies the effectiveness of the control strategy. •Dynamic programming saves energy in electric vehicle thermal management.•Dynamic programming uses an AmeSim-Simulink co-simulation model.•It is the first use of AmeSim to solve the limitations of dynamic programming.
ISSN:0967-0661
1873-6939
DOI:10.1016/j.conengprac.2023.105562